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DTC codes / U04xx · Invalid data received from a module / U04A6

U04A6Invalid Data Received From Hybrid/EV Battery Interface Control Module F

U04A6 is a communication fault where one control module on the vehicle's network reports that it has received invalid or corrupted data from the Hybrid/EV Battery Interface Control Module F. The module monitoring the network detects that the data frames coming from that battery interface module do not match the expected format or contain out-of-range values, so it sets this code and may illuminate the warning light.

SystemNetwork
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaInvalid data received from a module

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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